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Hydrogen Generation

Hydrogen Generation

Knitted mesh is used in hydrogen generation as an electrical current carrier, conductive spacer or electrode due to its compressible, conductive and resilient properties, ideal for the harsh environment of the electrolysis process.

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Hydrogen generation offers a clean fuel from a resource abundant in nature. Green hydrogen is produced by splitting water into hydrogen and oxygen (through electrolysis) using electricity from renewable sources such as wind, solar or hydro energy. Knitted Mesh is already used in electrolysis as the process conditions can be harsh and mesh offers a reliable solution for equipment to withstand the operating pressure and the caustic nature of the electrolyte solutions (normally potassium hydroxide – KOH). When energy is released using Fuel Cells there a number of possible applications for mesh in electrochemistry, electrodes, membrane spacers and electrical current carriers.

Knitted wire mesh can be produced from any metal including pure nickel or titanium. This strong and flexible material, created from a web of interlocking wire loops (typical 0.15mm diameter) and can be used in a wide range of hydrogen generation applications.

Applications

Hydrogen ICE

Following a hydrogen-oxygen reaction, energy can be released as heat and pressure ie in hydrogen internal combustion engines where knitted mesh can be used applications such as crank case breathers, heat shields and exhaust systems

Electrolysis

In Polymer Electrolyte Membrane (PEM) electrolysis, knitted mesh can be used to fill the gap between the electrodes and improve efficiency (zero-gap technology).

Flame Arresters

Burning hydrogen to release useful energy has many applications from flame and flash-back arresters to domestic cookers and boilers.

Knitted Mesh in Hydrogen Generation

  • Even compressibility (spring force) to ensure an even force is applied to the electrode / membrane
  • Large compression ratios (over 50%) with no plastic deformation to allow for different operating conditions
  • Gap can be controlled from less than 1mm up to any required by stacking
  • No wire breakages, so no risk of puncture to any membrane used (PEM)
  • Open structure allows the gas produced (eg hydrogen) to bubble up to the top for collection
  • Cut-ends (along only 2 sides) can be enclosed to protect the membrane
  • Knitted mesh can be used as the current carrier, spacer or electrode
  • Can be produced from any metal including pure nickel or titanium (typical 0.15mm diameter)
Suitable Materials For Hydrogen Generation